Glass-producing system.



No. 894,026. PATENTED JULY 21, 1908-. L. MAMBOURG & U. HOUZE.

GLASS PRODUGING SYSTEM.

APPLIGATION FILED FEB. 3. 1908.

2 SHEETS-SHEET 1.

m 1.1!; ['21: Inv nt Mfiym an), ma w Y/E,

Witnesses: M625 m 5. B

Attbrney No. 894,026. PATENTED JULY 21; 1908. L. MAMBOURG & U. HOUZE.

GLASS PRODUGINGISYSTEMQ APPLICATION FILED FEB. 3, 1908.

2 SHEETS-SHEET 2.

Attorney UNITED sT trns PATENT onnion.

LEOPOLD MAMBOURG AND ULGISSE HOUZE, OF MOUNT VERNON, OHIO, ASSIGNORS TO THE MAMBOURG GLASS SHEET MACHINE COMPANY, OF MOUNT VERNON, OHIO.

GLASS-PRODUCING SYSTEM.

T 0 all whom it may concern:

Be it known that we,- LEOPOLD MAMBoURe and ULGISSE HOUZE, citizens of the United States, residing at Mount Vernon, Knox county, Ohio, have invented certain new and useful Improvements in Glass Producing Systems, of which. the following is a specification. r

This invention, having in view mainlythe production of sheet glass of a superior qual ity and at materially reduced cost, will be readily understood from the following description taken in connection with the accompanying drawings in which Figure 1 is a vertical section of an apparatus exemplifying our improved. system: Fig. 2 a horizontal section of the same in the plane of line a of Fig. 1: Fig. 3 a horizontal section in theplane of line b of Fig. lzvand Fig. 4 a horizontal Fig. 1.

In the drawings:-1, represents an ordinary melting tank: 2, the molten glass there in: 3, a nose-block of the tank: 4, the pot which is illustrated as rectangular in plan:. 5, a, furnace surrounding the pot for the pur pose of maintaining the temperature of the molten glass therein: 6, a conduit leadingirom the tank to the pot and serving to maintain the glass in the pot at the level .of that in the tank, this conduit declining from a point somewhatbelow the level of the glass in the tank to a point at or near the base of the )ot, whereby the ot is constantly supplied with glass withd i'awn from the upper portion of the mass in the, tank and avoiding columns disposed over the the form of a tube: 12, a flexl the inferior glass found in the lower portions of the mass in the tank: 7, gas burners in the furnace 5, typilying means for heating that furnace: 8, chimney connection from the furnace 5:: 9, a series of hollow vertical guide ot, their inner uiding corners being preferably concave and isposed in the vertical planes of the inner corners of the pct: 10, a cross-head arranged to slide vertically upon the columns and be guided thereby: 11,.a suspender connected with the crossheadand being, referably, in

le pipe connected with this suspender and adapted for connection with a source of supply of compressed air .to be delivered to a point below the crosshead: a valve for controlling the iiow of air nigh the suspender: 14, a hoistwmnected with the suspender section in the plane of line 0 of Patented July 21, 1908. Serial No. 413,944.

and serving as means by which the crosshead may be raised and lowered, this hoisting apparatus having preferably the form of the trolley of a traveling crane: 15, bait-lip carried by the base of the orosshead very near its margin: 16, a series of rollers extending across from column. to c0lu1nn,'with the innor portions of their peripheries not far outwar 4 sides of the bait-lip, these rollers being preferably of carbon and mounted to turn on tubes connected with the guide columns so that the rollers may be water cooled: .17, a core disposed within the pot over the upper surface of the mo ten glass therein, the margins of this core being preferably but a short distance inwardly from the vertical planes of the inner portions of the rollers, the illustration showing this core as of mushroom shape and supported by a hollowstump extending up from the floor of the pct: 18, a compressed air conduit leading up through the stump and core and to be connected with. a suitable source 'of supply of compressed air: 19, an imperforate cover which may be temporarily disposed over and form a roof for the pot furnace 20, a gas burner typifying means for getting extra heat to the suriace of the glass 1n the pot: 2]., frame-columns for the sup ortiof the guide-columns: 22, a ring pipe at tie base of.

the guide columns and connected with the interior thereof and adapted to be connected with -a source of supply of cooling water: 23, a similar ring pipe at the top of the columns for the discharge of the cooling water: andg l, the hollow glass structurebeing produced, ts top being connected with the bait-hp and its base being formed at the upper surface of the ly away from the vertical planes of the In using the apparatus provided for drawing and blowing the glass, the crosshead is loaned to near the top of the glass in the pot and when the bait-lip has been properly heated it is lowered a trifle into,

the glass which immediately adheres thereto. The crosshead is now slowly drawn upwardly, the effect thus far being to pro-- duce a rectangular shell of glass in'dplastic condition, the lower edge of this shell being always at the constant level of the glass maintained in the pot. Under certain con ditions of the glass and at comparatively extended full size clear to the fioor of the pot.

Com ressed air is blown into the inte rior o the forming shell of glass, either throughthe blow pipe formed by the suspender 11 or through the blow pipe formed y the conduit 18, the advantage of the latter bein that it becomes possible to avoid com icating the drawing mechanism .with the b owing mechanism.

The outward ressure of the air within the forming shel of glass tends, of course to put the shell into the form of a cylinder providing the glass is soft enough and the tendency is not resisted. But in the present case the shell is confined to the rectangular plan by reason of its contact with the ro lers. These rollers are arranged at the base of the guide columns and loW enough down, or close enough to the surface of the glass in the pot, to fully define the rectangular form of the shell before the glass forming the shell shall have become so cool as to resist changes in form, and there are to-be enough of the rollers engaging the shell to hold the shell to the rectangular form until the glass shall have become cool enough to hold its rectangular form without extraneous support and in spite of the internal air pressure. The sides of the forming shell of glass are therefore given the fiat form and guided bythe roller-formed walls inclosing the shell, while the extreme corners of the shell may be guided'by the inner corners of the guide columns.

While the lowermost rollers are to be low enough down to accomplish the purpose above indicated for them, they should e kept as high up as their purpose will permit in order to keep them as far as practicable from the heat of the pot. guide columns and the rollers are water cooled.

It is to be noted that the drawing and formation of the shell can begin instantly gae hands of a skilled constructor.

The

upon the dipping of the bait-lip into the glass, no time being lost in the preliminary formation "of a neck. During the drawing of the shell the air pressure will be regulated with such regard to the speed of drawing and to the thickness of the shell that the shell will be maintained in its rectangular form without being bulged outwardly between the rollers. When the shell has been drawn to the desired length then a sudden hoist will sever its base from the glass in the pot and the shell may then be withdrawn from the apparatus and conveyed away for subsequent treatment. From the sides of the shell flat sheets of full size may be out, ready at once for the annealing furnace, thus avoiding entirely the great costs and wastes and lowering of quality incident to the production of sheet glass by first blowing a cylinder and then treatini the cylinder in a flattening furnace.

When the shell is entirely hoisted away from the glass in the pot there may be pertions of the soft glass not pulled away but falling to the pot in not fully melted condition. In such case the burners 20 may be brought into action temporarily to apply special heat at the top of the glass in the pot and, if desired, the cover 19 may be temporarily placed over the pot-furnace to protect the mechanism from the heat which may be especially high at this time. This renders it unnecessary to hoist the column and roller structure up for protection.

In the construction illustrated provision is made for drawing the shell rectangular in cross-section, but it is manifest that the shell may have any desired number of flat sides in lieu of the four provided for .in the exemplification. Some features of the system are of applicability in associations other than those set forth and are of availability for products other than sheet glass and many of the details of the system Will lend themselves to quite a range of variations at 1. Glass producing apparatus comprising,

a vessel adapted to contain molten glass to be withdrawn therefrom upwardly in the form of a shell, a head movably supported above the vessel, means for raising and lowering said head to and from the glass in the vessel, a bait carried at the base of said head and adapted to dip into the molten glass in the vessel, a series of horizontal members sup orted over said vessel .near the molten g ass therein and-adanted to make contact with the exterior of the shell The paras it is formed, and a conduit adapted to convey compressed air into the space between said head and the molten glass in the vessel whilethe shell is being formed by the movement of the head upwardly away from the glass in the vessel, combined substantially as set forth.

2. Glass producing apparatus comprising, a vessel adapted to contain moltenglass to be 1o withdrawn therefrom upwardlyin theform of a shell, a head movably supported above the vessel, means for raising and lowering said head to and from the glass in the vessel, a baitlip carried at the base of said head and having.

a flat-sided horizontal contour and horizontal dimensions corresponding substantially 'with the horizontal cross-section of the shell to be produced, said bait-lip being adapted to dip into the molten. glass in the vessel, a

series of horizontal members supported over said vessel near the molten glass therein, said members having straight inner surfaces parallel with, the flat sides of the bait-lip and adapted to make contact with the exterior of the shell as it is formed, and a conduit adapted to convey compressed air into the space between said head. and the molten glass in the vessel while the shell is being formed .by the movement ofthe head upwardly away from the glass in the vessel,

combined substantially as set forth.

Glass producing apparatus comprising, a vessel adapted to contain molten glass to l)6 Wltl1Cl13.WIl therefrom upwardly in the form of a shell, a head movably su .orted above the vessel, means for raising andlbwering said head to and from the glass in the vessel, a bait carried at the base of said head and adapted to dip into the molten glass in 40 the vessel, a series of horizontal rollers supported over said vessel near the molten glass therein and adapted to make contact with the exterior of the shell as it is formed, and

conduit adapted to convey compressed --air into the space between said head and the moltenglass in. the vessel while the shell is I being fiirmed by the movement of the head upwardly away from the glass in the vessel, combined substantially as set forth.

4. Glass producing apparatus comprising,

la vessel adapted to contain molten glass to be,withdrawn therefrom upwardly in the form of a shell, a head movably sup 'orted' above the vessel, means for raising'and owering said head to and from the glass in the "vessel, a bait-lip carried at the base of said head and having a flat-sided horizontal contour and horizontal dimensions corresponding substantially with the horizontal crosssection of the shell to be produced, said bait 1i.) being adapted to dip into the molten cits supported oversaid vessel near the molten glass therein and adapted to make 65 tact with'the exterior of the shell as it is g ass in the vessel, a series of horizontal rollformed, and a conduit adapted to convey corn ressed air into the space between said, head and the molten glass in the vessel while the shell is being formed by the movement of the head upwardly away from the glass in the vessel, combined substantially as set forth.

Glass producing apparatus comprising, a vessel adapted to contain molten glass to be withdrawn therefrom upwardly in the form of a shell, a head movably-supported above the vessel,- means for raising and lowering said head to and from. the glass in the vessel, a bait-lip carried atthebase of said head and adapted to dip into the molten glass in the vessel, a series of horizontal rollers supported over said vessel near the molten glass therein andadapted to make contact with the exterior of the shell as it is being formed, a vertical series of horizontal rollers supported above and in the vertical plane of each of the first-mentioned. rollers, and a conduit adapted to convey compressed air into the space between said head and the molten glass in the vessel while the shell is being formed. by the movement of the head upwardly away from the glass in the vessel, combined substantially as set forth.

-6. Glass producing apparatus comprising, a vessel adapted to contain molten glass to be withdrawn therefrom upwardly in the form of a shell, a head movablysupported above the vessel, means for raising and lowering said head to and from the glass in the vessel, a bait-lip carried at the base of said head and having a flat-sided horizontal contour and horizontal dimensions correspond ing substantially with the horizontal crosssection of the shell to be produced, said bait- 1i being adapted to dip into the molten glass in the vessel, a series of horizontal rollers supported over said vessel near the,

molten glass therein and adapted to make contact with the exterior of the shell as it is being formed, a vertical series of horizontal rollers supported above and in the vertical plane of each of the first-mentioned rollers, and a conduit adapted to convey compressed air into the space between said head and the molten glass in the vessel while the shell is beingformed by the movement of the head upwardly away from the glass in the vessel, combined substantially as set forth.

7. Glass producing apparatus comprising, a vessel adapted to'contain molten glass to be withdrawn therefrom upwardly in the form of a shell, a head movably supported above the vessel, means for raising an owermg said head to and from the glass 1n the vessel, a bait-lip carried at the base of said head and adapted to dip into the molten glass in the vessel, horizontal hollowrollers supported oversaid vessel and adapted to make centact with the exterior of the shell as it is being formed, means for circulating Water through theinterior of said rollers, and a conduit adapted to convey compressed air into the space between said head and the molten glass in the vessel while the shell is 'being'formed by the movement of the head upwardly away from the glass in the vessel, combined substantially as set forth.

8. Glass producing apparatusicomprising, a vessel adapted to contain molten glass to be withdrawn therefrom upwardly in the form of a shell, a head movably supported above the vessel, means for raising and lowering said head to'and fromthe glass in the vessel, a bait-lip carried at the base of said head and adapted to dip into the molten glass in the vessel, vertical guide columns adapted to be engaged by said head and disposed at the vertical planes of the corners of the shell to be produced, horizontal rollers supported by said guide columns and adapted to make contact with the exterior of the shell as it is being formed, and a conduit adapted to convey compressed air into the space between said head and the molten glass in the vessel while the shell is being formed by the movement of the head upwardly away from the glass in the vessel, combined substantially as set forth,

9. Glass producing apparatus-comprising, a vessel adapted to contain molten glass to be withdrawn therefrom upwardly in the form of ashell, a head movably supported above the vessel, means for raising and lowering said head to and from'the glass in the vessel, a bait-lip carried at the base of said head and having a flat-sided horizontal contour and horizontal dimensions corresponding substantially with the horizontal crosssection of the shell to be produced, said baitlip being adapted to dip into the molten glass in the vessel, vertical guide columns adapted to beengaged by said head and disosed at the vertical planes of the corners of the shell to be produced, horizontal rollers supported by said guide columns and adapted to make contact with the exterior of the shell as it is being formed, and a conduit adapted to convey compressed air into the space between said head and the molten glass in the vessel while the shell is being formed by: the movement of the head upwardly away from the glass in the vessel, combined substantially as set forth.

10. Glass producing apparatus comprising,

a-vessel adapted to contain molten glass to be withdrawn therefrom upwardly in the ering said head to and from the glass in the vessel, a bait-lip carried at the base of said head and adapted to dip into the molten glass in the vessel, vertical hollow guide columns disposed over the vessel in the vertical planes of the corners of the shell to be produced, hollow horizontal rollers supported by the bases of said guide columns and adapted to make contact with the exter'or of the shell as it is being formed conduits or effectmg a circulation of water through said guide columns and rollers, and a conduit adapted.

to convey compressed air into the space between said headv and the molten glass in the vessel while the shell is being formed by the movement of the head upwardly away from the glass" 111 the vessel, combined substan' tially as set forth.

11. The improvement in the art of glassworking, which consists in preparing a mass of molten glass, drawing a shell upwardly therefrom, maintaining a pressure of air within the shell tending to expand it in circular form while soft, and maintaining a' mechanical pressure upon the exterior of the shell to resist the internal. air pressure and to force the shell to assume a flat-sided form.

12; The improvement in the art of glassworking, which consists in pre aring a mass of molten glass, drawing a s ell upwardly therefrom, maintaining a pressure of air within the shell tenidng to expand it in circular form while soft, maintaining a mechanical pressure upon the exterior of the shell to resist, the internal air pressure and to force the shell to assume a flat-sided form, and maintainingsuch exterior mechanical pressure upon the rising shell until the shell shall I have become sufiiciently cold to maintain its flat-sided form notwithstanding the internal air pressure tending" to give it the circular form.

' LEOPOLD MAMBOURG.

ULGISSE HOUZE. Witnesses:

J. B. WAIGHT,

FRANK Moons, 

